When I speaking with the local branch manager about the incident in the previous posts, he told me that they're doing their work and everything else is none of their problem. Here's another example of USPS doing their "work".
Monday, June 23rd, I dropped two netflix envelopes, into the same mailbox and at the same time. This was after the 9AM pickup and before the 3PM pickup. Netflix received one dvd on the 24th and the other on the 25th.
Since this was a Monday, I assume that most of the mail was dropped off on Sunday and Monday morning and was picked up and sorted by 3PM. There are very few mailboxes with 3PM pickup and also Monday was a business day so there shouldn't be too much mail to sort through by the time they got my envelopes. So what could possibly happen that would cause two pieces of mail that were sent at the same time to arrive a day apart? Incompetence. Let's not forget this is the same branch where I had to wait for around half an hour each time I came there, regardless of time of day, day of week or length of line.